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时间:2020-01-30
《英语人教版九年级全册Unit 13 Section A 3a-3b.pptx》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、Unit13Wearetryingtosavetheearth.SectionA3a-3bThesecondperiodImportantwords1.科学(n)______科学家(n)_______科学(adj)________2.危险(n)_____危险的(adj)____濒临灭绝的(adj)_________3.南方(n)_______南方的(adj)_______4.卖(v)______(n)_______Importantphrases:1.听说_________2.切掉;砍除_____3.不但---而且---__________4.对---有害__
2、__________5.在---顶端__________6.到目前为止_________7.处于危险中__________sharkfinfinsIsthesharkcruel?What’sthesharkdoing?Let’slookattheadvisement!Doyoulikesharkfin?↑鱼翅汤Whatarethefinsusedtodo?Shouldwebefriendlytosharks?Shouldwesavethesharks?A.Yes.Sharksareindanger.Ifwedon’tsavethem,theywilldisa
3、ppearsoon.B.No.Sharksareverystrong.Theyarecruelanddangerous.Thereisnoneedtosavethem.Read3aquicklyandfindoutthewriter’sopinion.Shouldwesavethesharks?ReadPara.1andwriteTorF.Proposing(提出)Youarekillingawholesharkeachtimeyouenjoyabowlofsharkfinsoup”.TSavethesharks!1.Whatdopeopledowithsha
4、rkswhentheycatchthem?(and)2.Whatdoyouthinkoffining?(notonly,butalso)ReadPara.2andanswerthequestions.Analyzing(分析)1.Whatdopeopledowithsharkswhentheycatchthem?(and)Theycutofftheirfinsandthrowthesharksintotheocean.Why?Sharkfinsareveryexpensive.Butthesharkmeatdoesn’ttastegood,itisverych
5、eap.Inordertosavethespaceformorefins,whichmeansmoremoney,peoplejustcutoffthesharks’finsandthrowthembackintotheocean.Thisiscalled“fining”.2.Whatdoyouthinkoffining?(notonly,butalso)Whathappentothesharksaftertheirfinsarecutoff?Withoutafin,asharkcannolongerswimandslowlydies.Thisisnotonl
6、ycruel,butalsoharmfultotheenvironment.…cruel,…harmful…==abowlofsharkfinsoupthelifeofawholeshark2.Whatdoyouthinkoffining?…cruel,…harmful…Whyisitharmfultotheenvironment?Sharksareatthetopofthefoodchainintheocean’secosystem.Iftheirnumbersdroptoolow,itwillbringdangertoalloceanlife.Enviro
7、nmentalprotectiongroupsaroundtheworldaskedgovernmentsto______________________ofsharkfins.2.Aresharkfinsgoodforhealth?ReadPara.3andanswerthequestions.No.What’sthefact?Solving(解决)stopthesale科学研究显示,鱼翅中胶原蛋白含量虽然很高,但缺少一种必需的氨基酸(色氨酸),不容易被人体吸收。鱼翅的营养价值还不如牛奶,鸡蛋。另外,鱼翅被汞等有毒重金属污染的程度高达70%。鲨鱼处在食物链顶
8、端,因此它们体内积聚的有毒物质常常超出
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